Pressure-regulator.



J. BUSHAGER.

PRESSURE REGULATOR. VAPPLICATION FILED FEB. 26. 1916.

Patented Nov. 19,1918.

INVENTOR Jaw fiwflaym WITN ESSES ATTORNEY I a ll ED STATES JOSEPH BUSHAGER, F CAMERON, WEST VIRGIN IA.

PRESSURE-REGULATOR.

Speetflcafloa oi matters Patent.

Patented Nov. 19 191%,,

Application filed' February 26,1916. Serial No. 80,705.

To all whom it may concern:

Be it known that I, JOSEPH BUSHAGER, a

\ citizen of the United States, residing at Cameron, in the county of Marshall and State of West Virginia, have invented certain new and useful Improvements in Pressure-Regulators,'of which the/following is a specification.

is invention relates to pressure regulators, and has particular reference to an automatically operated regulator for the oil or gas supplied to the burners for heating steam boilers. i

The principal object of the invention is to provide a regulator for the purpose men tioned which will be operable by the steam pressure created in the boiler by the burners, so that the supply of fuel to the burners will be regulated proportionately to the consumption of the steam.

Another object of the invention is to provide, in a regulator of this character, means whereby the maximum or minimum flow of fuel through the burners may be varied.

A further object of the invention is to provide a regulator of this character which is simple in construction, positive and emcient in operation, cheap to manufacture, and which is easy to install in an oil or gas burning system for boilers.

With the foregoing and other objects in view. the invention consists in the novel features of construction, combination and arrangement of parts, as will be hereinafter more fully described, illustrated in the accompanying drawings, and claimed.

In the drawings Figure 1 is a vertical sectional view through the regulator showing the same in an operative position upon a boiler.

Fig. 2 is a horizontal section on the line 22 of Fig. 1.

Referring to the drawings by numerals, wherein is illustrated the preferred embodiment of my invention, 1 designates the steam boiler which may be of any usual construc-' tion. the same being provided with a flre box (not shown) within which is adapted to be arranged burners for heating the boiler, the burners being of that character adapted for burning gaseous or liquid fuel.

A pipe 2 is provided which communicates with the boiler 1, extends any suitable distance therefrom, and carries at its outer end a hollow substantially semi-spherically shaped container 3. This container is open at its upper end and is provided with a laterally extending flange 4.

A diaphragm preferably in the nature of a flat disk of thin brass or the like 5 is arranged upon the upper face of the flange 41-. and serves to close the open end of the container. A ring 6 is arranged upon the diaphragm and bolts 7 are passed through the ring, diaphragm and flange whereby the diaphragm may be secured upon the con-- tainer.

A plurality of arms 8 extend upwardly from the ring 6 in converging relation and carry at their upper ends, a plate'9. A second diaphragm 10 similar in construction to the diaphragm 5, is arranged upon the upper face of the plate 9 and is secured thereto by means of bolts 11 Which pass through the plate, diaphragm and a flange 12 formed upon the lower end of a hollow cylindrical casing 13, the said casing being closed at its top and opened at its bottom, as is clearly illustrated in Fig. 1 of the drawing.

An internally threaded tube 14 projects into the casing 13 from its upper closed end and terminates short of the lower face of the flange 12. This tube 14 has communieating therewith, a passage 15 which opens into one side thereof at one end, and at its opposite'end opens through the side wall of the casing 13. An intake pipe 16 is threaded into the passage 15 and is adapted for conveying a fuel, either gaseous or liquid to the casing. The casing at a point diametrically opposite to the passage 15 is provided in its side wall with an opening which has threaded thereinto a pipe 17 which is adapted to convey the fuel from the casing to the burners arranged within the fire box of the boiler for. heating-the same.

Adapted to be threaded into the tube 14 is a plug 18 that projectsat its upper end above the top and which is provided with a bore 19 extending thereinto any suitable distance and opening at its lower end, where it is flared to provide a valve seat 20. A

Q meaoee plurality of radially extending openings 21 ply pipe as will be obvious. By the prohaving a diameter substantially the same as vision of the arm 26 with the ad ustable that of the passageway 15 and formed in the side walls of the plug and communicate with the bore 19, so that when the plug is threaded in the tube, one of these openings will aline with the passage way 15 and permit the fuel to pass into the casing. This construction also enables the fuel to be manually throttled to a certain extent by turning the plug more orless and so reduce the size of the opening 21 Where it communicates with the passageway.

A rod 22 is mounted upon the diaphragm 5, at its'lower end, and at its upper end is reduced, as at 23, and passed through the diaphragm 10, the said reduced portion being provided with a valve 24: which is arranged in alinement with the plug 18 and is adapted to engage the seat 20 to out OK the supply of fuel from the intake pipe 16 to the casing. This rod 22 is jacent its lower end, with a transversely arranged opening 25 throu h which passes an arm 26 which is pivotal y connected, as at 27, to a bracket 28 carried by the ring 6. This arm 26 extends any suitable distance past the rod 22 and is provided with a weight 29 which is rendered longitudinally adjustable upon the arm by means of a set screw 80.

The regulator as just described is adapted to operate as follows Liquid or aseous fuel is admitted to the pi e 16 and 1s forced therethrough preferab y under pressure. This fuel passes through the passage 15 and through the bore of the plug 18 into the casing-13, from where it passes out through the pipe 17 to supply the burners. The heat from the burners generates steam in theboiler in the ordinary manner.- When the pressure of the steam within the boiler rises or lowers, as is constantly apparent due to the variance in its consumption, the pressure within the container 3 will likewise vary. This variance of pressure within the container will cause the diaphragm 5 to bulge outwardly or retract, as will be understood. This movement of the diaphragm 5 will transmit longitudinal movement to the rod 22 carrying the valve 2&, so that as the pressure increases within the container 3, the diaphragm 5 will be moved farther outwardly and the valve moved toward its seat to partiall or entirely cut 03 the supply of fuel rom the pipe 16 to the casing. It will thus be seen that as the pressure in the boiler becomes low, the valve will open to its full extent to ermit of a maximum amount of fuel to the urners, whereas when the pressure is high within the boiler, the valve will be moved to either entirely out ofi the supply of fuel or permit of but slight intake from the supbore 19, are

provided, ad-s weight thereon, it will be perceived that the amount of pressure required to close the valve may be varied to suit the conditions under which the regulator is installed.

By reference to Fig. 1 of the drawing it will be noted that the movement of the rod 22 necessary to cause the valve 24: to engagewith the seat 20 may be varied by adjusting the. plug 18 within the tube 14:, this being particularly permissible by reason of the provision of a plurality of the openings 21 so that the plug may be rotated but a part of a turn to slightly vary the distance between the valve and its seat but which will permit of a full flow of fuel from the intake pipe to the bore of the plug when any one of the openings are alined therewith. It will also be noted that a very slight turn of the plug .will be sufficient to move the opening 21 out of line with the passageway and so reduce the flow of fuel. This movement is so slight that no apprec' able variation in the distance between the valve seat and the valve, or in other words the valve adjust ment, will be caused.

If desired, also, suitable gaskets 31may be provided between the diaphragms 5 and 10 and the adjacent faces of the container 3 and casing 13, respectively, in order to prevent escape of steam from thecontainer or gas or oil fromthe casing, as will be obvious.

If desired, also, a suitable be provided between the p ug 18 and the tube 14 to prevent escape of oil or gas from the casing in this manner.

From the foregoing description taken in connection with the accompanying drawings, it is thought that the construction and operation of the improved'pressure regulator will be clearly understood, and while 1 have therein shown and described one specific embodiment of my invention, 1 do not wish to be limited thereto, except for such limitations as the claim may impart.

What is claimed is A pressure re lator comprising a pressure operated diaphragm, a valve movable by said diaphragm, a casing inclosing said valve, sections of a fuel supply pipe leading to and from said casing, a tube rigidly connectedto said casing and projecting into the same beyond the line of fuel supply connection and threaded interiorly, atubular passage way between the inlet section of the fuel supply pipe andsaid tube, a threaded plug ad usta ly mounted insaid tube and pro ecting through one end of the same into the casing and through the opposite end to the exterior thereof, a bore within said plug opening through its lower end and terminating in a valve seat for said pressure operated valve and adjustable to and from said acking 32 mayv valve by turning said lug, and openings from the inner end of t e bore adapted to communicate with said passageway, and so arranged that a limited manual movement of the plug in a rotary direction will serve to throttle the floW of fuel by lessening the size of the opening between the passageway and the .bore Without materially changing the adjustment of the automatic valve control means.

In testimony whereof I affix my signature in presence of two Witnesses.

JOSEPH BUSHAGER. Witnesses:

MINOR GRossMAN, CHAS. HOWARD. 

